Finding the Fourth Proportional to 10,830.09, 14,945.57 and 5,862.09
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Solution
The fourth proportional to 10,830.09, 14,945.57 and 5,862.09 is: 8,089.71
Step by Step Solution
- Step 1: Write the proportion equation
10,830.09 : 14,945.57 = 5,862.09 : x - Step 2: Convert to fraction form
10,830.09/14,945.57 = 5,862.09/x - Step 3: Cross multiply
10,830.09x = 14,945.57 × 5,862.09 - Step 4: Simplify right side
10,830.09x = 87,612,358.13 - Step 5: Solve for x
x = 87,612,358.13/10,830.09 - Step 6: Final answer
x = 8,089.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.